add sorting for convos

lib/business_logic/chat/chat.dart

@@ -5,7 +5,7 @@ import 'package:loris/business_logic/timeline/timeline.dart';
 import 'package:loris/global.dart' as global;
 import 'package:http/http.dart' as http;
 
-class ConversationModel {
+class ConversationModel implements Comparable {
   final String id;
   final List<AccountModel> accounts;
   final bool unread;
@@ -35,22 +35,29 @@ class ConversationModel {
         unread: json["unread"],
         lastStatus: PostModel.fromJson(json["last_status"], identity));
   }
+
+  @override
+  int compareTo(other) {
+    if (lastStatus == null && other.lastStatus == null) return 0;
+    ;
+    if (lastStatus == null) return -1;
+    return lastStatus!.createdAt.compareTo(other.lastStatus!.createdAt);
+  }
 }
 
 class ConversationModelResult {
-  // http status code
-  final int statusCode;
-
   // list of models
   final List<ConversationModel> models;
 
-  ConversationModelResult(this.statusCode, this.models);
+  final Map<String, String?> maxIds;
+
+  ConversationModelResult(this.models, {this.maxIds = const {}});
 }
 
 /*
 loads conversation models from timeline
 */
-Future<ConversationModelResult> getConversationModels(
+Future<ConversationModelResult> _getConversationModels(
   String identityName,
   String? maxId,
 ) async {
@@ -73,14 +80,35 @@ Future<ConversationModelResult> getConversationModels(
 
   final result = await http.get(uri, headers: headers);
   if (result.statusCode != 200) {
-    return ConversationModelResult(result.statusCode, []);
+    return ConversationModelResult([]);
   }
 
-  return ConversationModelResult(
-      result.statusCode,
-      jsonDecode(result.body)
-          .map<ConversationModel>(
-            (e) => ConversationModel.fromJson(e, identityName),
-          )
-          .toList());
+  return ConversationModelResult(jsonDecode(result.body)
+      .map<ConversationModel>(
+        (e) => ConversationModel.fromJson(e, identityName),
+      )
+      .toList());
+}
+
+Future<ConversationModelResult> getAllConversationModels(
+    Map<String, String?> maxIds) async {
+  List<Future> futureResults = [];
+  global.settings!.identities.forEach((key, value) {
+    futureResults.add(_getConversationModels(key, maxIds[key]));
+  });
+  List<ConversationModel> models = [];
+  for (var element in futureResults) {
+    models.addAll((await element).models);
+  }
+  models.sort();
+  models = models.reversed.toList().sublist(0, global.settings!.batchSize);
+  Map<String, String?> newMaxIds = {};
+  for (var element in models) {
+    if (newMaxIds[element.identity] == null) {
+      newMaxIds.addAll({element.identity: element.id});
+    } else if (element.id.compareTo(newMaxIds[element.identity]!) < 0) {
+      newMaxIds.addAll({element.identity: element.id});
+    }
+  }
+  return ConversationModelResult(models, maxIds: newMaxIds);
 }

lib/pages/chat/chat.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:localization/localization.dart';
 import 'package:loris/business_logic/chat/chat.dart';
 import 'package:loris/themes/themes.dart' as themes;
 import 'package:loris/global.dart' as global;
@@ -15,16 +16,12 @@ class _ChatState extends State<Chat> {
   // map that stores max ids for each identity
   Map<String, String?> maxIds = {};
 
-  Future<void> fetchForIdentity(String identityName) async {
-    final c = await getConversationModels(identityName, maxIds[identityName]);
+  Future<void> updateConversations() async {
+    final models = await getAllConversationModels(maxIds);
+    print(models.maxIds);
     setState(() {
-      conversations.addAll(c.models);
-    });
-  }
-
-  void updateConversations() {
-    global.settings!.identities.forEach((key, value) {
-      fetchForIdentity(key);
+      conversations.addAll(models.models);
+      maxIds = models.maxIds;
     });
   }
 
@@ -80,7 +77,9 @@ class ConversationButton extends StatelessWidget {
         child: Column(
           children: [
             Wrap(
-              children: [SelectableText(model.identity)],
+              children: [
+                SelectableText("${"you-are".i18n()} ${model.identity}")
+              ],
             )
           ],
         ),